Abstract

The paper represents a comparative cytogenetic analysis of three populations of Hypostomus regani in Brazil. Two populations belong to the Upper Paraná River Basin and the third one, the karyotype of which is described for the first time, was probably introduced into the São Francisco River Basin through transposition from the Piumhi River. Karyotype features of populations of H. regani from the Piracicaba and Tietê River Basins are also discussed. The occurrence of H. regani in the São Francisco River Basin is reported for the first time here. The study also revealed distinct differences in the location of the Ag-NORs between the analyzed populations that enable individuals from the Piumhi River, Mogi-Guaçu River and Tietê River to be distinguished from one another. Thus, the data obtained indicate the possibility of geographic variation fixing different karyotypes even in the same basin of origin.

Addeddate

2025-03-14 00:25:12

Bhl_virtual_titleid

210879

Bhl_virtual_volume

v.5:no.2 (2011)

Call number

10_3897_compcytogen_v5i2_964

Call-number

10_3897_compcytogen_v5i2_964

Foldoutcount

0

Genre

article

Identifier

descriptionkary5arto

Identifier-ark

ark:/13960/s278vxnxvm3

Identifier-bib

10_3897_compcytogen_v5i2_964

Identifier-doi

10.3897/compcytogen.v5i2.964

Issue

2

Ocr

tesseract 5.3.0-6-g76ae

Ocr_detected_lang

en

Ocr_detected_lang_conf

1.0000

Ocr_detected_script

Latin

Ocr_detected_script_conf

1.0000

Ocr_module_version

0.0.21

Ocr_parameters

-l eng

Page_number_confidence

77

Page_number_module_version

1.0.5

Page_range

133-142

Pages

10

Pdf_degraded

invalid-jp2-headers

Pdf_module_version

0.0.25

Possible copyright status

In copyright. Digitized with the permission of the rights holder.

Ppi

300

Source

Comparative Cytogenetics 5(2)

Year

2011

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